"C.Clary" wrote:
> Hi all,
> I really think this Ghz. goobly-gook is way over rated. I think, if you
> look more closley at the problem, the key to superior proformance is in the
> found in the actual construction or architecture of the processor. The
> Itanium, for example only runs at 733 Mghz but it has (on die) 2meg of
> cashe on the L-2... The Alpha, in its previous incarnation ran at only 233
> but did 64 bit processing... Quite amazing actually.
However, it depends on what you're doing. Our CFD code only ran
50% faster per CPU on an Alpha/Myrinet cluster compared to a
PII/450 cluster with Fast Ethernet (this was about 2 years ago).
We still haven't seen a need to go with Alpha (haven't tested
Itanium yet).
So, again, it depends on what you're doing and what your ultimate
goal is (but then again, the good Beowulf folks already know this :)
Jeff
>>> A friend wrote me that:
> "Red hat is working closely with Compaq to solidify its OS to the Alpha
> architecture"... I don't know for sure, first hand... But it is, of course,
> the next logical step, since FreeBSD, already provides a clean UNIX 64 bit
> processing code for the Alpha.
> Chip
>> -----Original Message-----
> From: beowulf-admin at beowulf.org [mailto:beowulf-admin at beowulf.org]On
> Behalf Of Craig Tierney
> Sent: Friday, January 11, 2002 11:13 AM
> To: Rob Simac
> Cc: beowulf at beowulf.org> Subject: Re: Fastest Intel Processors
>> The 2.2 Ghz cpus have just been released. This generation
> of cpu is built at 0.13 microns and has twice as big of a
> L2 cache (512 KB). These are the single processor versions.
> The Xeon (smp) chips should follow shortly (I am guessing).
> Go look at the roadmaps at www.theregister.co.uk. They tend to
> be accurate.
>> I have not heard that there is a problem with the 2.0 Ghz. Is
> it a problem with RedHat or the Linux kernel specifically? We
> had no problems with the 1.7 Ghz Xeon chips, but they are not the
> 2.0 Ghz that you are talking about.
>> Craig
>> On Fri, Jan 11, 2002 at 07:03:35AM -0800, Rob Simac wrote:
> > What is the fastest Intel processors available to the public? Have
> > the 2.0 Ghz been released? I have also heard rumors that the 2.0 Ghz
> > has problems running with Red Hat 7.1. Has anyone else heard this?
> >
> > Ciao,
> > Rob.
> >
> > ======================================================
> > Rob Simac -- Therma-Wave, Inc. -- rsimac at thermawave.com> > <mailto:rsimac at thermawave.com>
> > ======================================================
> > "Remember this, foolish mortals, when ye stare headlong into the
> > mind-paralyzing void, the inky black nothingness of existence, the
> > hellish yawning maw of the abyss -- it's pretty damn dark, so give it a
> > few minutes for your eyes to adjust."
> > Frank M. Carrano, Branford, Conn.
> > (Bulwer-Lytton Writing Contest Runner-up)
>> --
> Craig Tierney (ctierney at hpti.com)
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